# childishness

> English word · Noun · IPA /ˈt͡ʃaɪld.ɪʃ.nəs/ · frequency rank #70,565

## Definitions
1. The state or characteristic of being childish.
2. Childish behaviour.

## Etymology
From Middle English childishnes, childisnes, equivalent to childish + -ness.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/childishness